January Challenge 2013
The Minimum Number Of Moves, End Of The World, Chef of the Year, Three Different Numbers, Little Elephant and Alcohol
February 2013 Challenge
Little Elephant and Cards, Buy1-Get1, Climbing Stairs
April Challenge 2013
Little Elephant and Music, Barcelona Gameplay Tactics, Maximum Weight Difference, Levy Conjecture
July Challenge 2013
The Probability Of Winning, Circle of death, Count K-Primes, Chef and Walking on the rectangle , Galactik Football, Mountain Holidays
August Challenge 2013
Little Elephant and Lemonade, Hello Hello, Save The Princess, The Number Of Solutions, Chef and Segments, Splitting Candies
October Challenge 2013
Little Elephant and Bamboo, Helping Lira, Maxim and Dividers, Sereja and Transformation
